Carbureter.



O. TEED.

CARBURETER.

7 APPLICATION FILED OCT. 19, 1915- 7 1,198,789. Patentedsept. 19,1916.

flg 0 OREN TEED, OF LOS ANGELES, CALIFORNIA.

CARBURETER.

Specification of Letters Patent.

Patented Sept. 19, 1916.

Application filed October 19, 1915. Serial No. 56,804.

To all whom it may concern.

Be it known that I, Oman Tenn, a citizen of the United States, residingat Los Angeles, in the county of Los Angeles, State of California, haveinvented new and useful Improvements in Carbureters, of which thefollowing is a specification.

This invention relates to carbureters for internal combustion enginesand the like; and it is an object of this invention to produce a simple,inexpensive, easily adjusted and easily operated carbureter which willproduce at all times an efiicient and proper mixture of combustiblevapor and air.

The various features of my invention are set forth in the followingspecification, wherein I describe a preferred form of my invention,reference being had to the accompanying drawings, in which, for thepurpose of this specification, I illustrate a pre ferred form of myinvention.

In these drawings Figure 1 is a vertical section taken as indicatedbyline 11 on Fig. 2, Fig. 2 is a vertical section taken as indicated byline 22 on Fig. 1, Fig. 3 is a side elevation of the carbureter,corresponding in aspect to Fig. 1, Fig. 4 is a section taken asindicated by line 4--4 on Fig. 1, and Fig. 5 is a section taken asindicated by line 5-5 on Fig. 1.

In the drawings I have illustrated a suitable body 10 which includes aliquid fuel chamber 11, a heating jacket 12 and a preferably cylindricalvalve chamber 13. This valve chamber 13 is open below to the air passage14 into which air is admitted from atmosphere through the two passages15 and 16. The passage 15 isv left open at all times and is of such sizeas to properly supply the minimum quantity of air desired, while thepassage 16 is controlled by a suitable valve 17 so as to control thesupply of air in excess of that supplied through the passage 17.

A cylindrical valve 17 fits in the cylindrical valve chamber 13 and hasa port 18 adapted to register with the upper opening or port 19 of thecylindrical valve chamber, and has a port 20 adapted to register withthe lower opening of the cylindrical valve chamber. This cylindricalvalve is preferably made in the form of a shell which is carried on ahead 21 at one end, being screw threaded upon this head, and carriedupon another head 22 at the opposite end. These heads are mounted onopposite ends of an inner sleeve 23 which not only performs the serviceof a hub for the valve, but also performs service as a liquid or fuelcontrol valve, as will be herelnafter pointed out.

On the outer side of the head 21 provision may be made for securing anoperating arm 25. To hold the whole cylindrical valve in placelongitudinally in the casing'I may employ a disk 26 held in place by twoscrews 27 and this disk may have a slot 28 in which a pin or equivalentmember 29 rides, the pin being mounted in the arm 25, and thus limitmgthe movement of the arm 25 and the valve 17. One edge of the chamberport 13.), shown at 30, is arranged diagonally, so that this port may begradually opened by the turning of the valve 17 in the directioninclicated by the arrows in various views.

The liquid fuel is held in a suitable cham ber 11 and a float 42operates a valve 43 to control the height of the liquid. I do notspecifically describe the float and valve mechanism for the reason thatI do not wish to limit myself to the specific form shown. I may say,however, that the cover 44 may be held in place by any suitable means,and the cover will carry with it float 42 and the valve 43 when liftedoff the chamber 11. A liquid fuel port 44 leads from the fuel chamber toa small chamber 45 situated at one end of the casing, as is best shownin Figs. 2 and 5. The chamber 45 is in effect an annular chambersurrounding one end of a nozzle tube 46. This tube is a part of theliquid fuel nozzle and it extends longitudinally through the sleeve 23,hereinbefore described. Access of liquid from the annular chamber 45 tothe interior of the tube 46 is had through a suitable port 47. The tube46 is locked in a certain set position by the lock nut 48 at one end. Inthis position the tubes 49 which form the small or capillary outletsfrom the interior of the tube 46 are in a vertical position. The tubes.49 perform merely the ofiice of providing small or capillary outletsfor the liquid from the tube 46; and they are spaced longitudinallyalong the tube 46, being preferably spaced closer'together at one endthan at the other. The sleeve 23 has a port 50 which is adapted topassover the capillary tubes 49 when the sleeve 23 is rotated in thedirection indicated; and this port 50 has a diagonal edge 51 so that thecapillary tubes 49 are successively uncovered, and are not uncovered allat one time. By proper spacing and arranging of the tubes 49 alongthetube 46, and by making the angle of the edge 51 the proper angle, therate of opening of the fuel supply may be controlled as desired. It willbe noted that as the air control valve is turned to open the air passagethrough the carbureter, the capillary tubes %9 are successivelyuncovered until, when the air supply is completely open, all thecapillary tubes are uncovered and the maximum amount of liquid fuel issupplied.

At one end of the cylindricalJvalve chamher and of the cylindrical valve17 1 provide a by-passage 60; and a single capillary tube 49 is situatedin this lay-passage. This by-passage is designed to pass the minimumamount of air required to operate an engine at minimum speed, when thevalve 17 is entirely closed; and the section of the bypassage 60 may beadjustably restricted by two screws 61 and 62, one above and the otherbelow the nozzle tube l6. Adjustment with the screw controls the amountof air which can be drawn through the bypassage 60 and adjustment withscrew 61 controls the amount of suction applied to the capillary fueltube 49; so that, by suitable adjustment of these two screws, the amountof mixture and the quality thereof may be adjusted to supply thenecessary minimum amount for any engine.

The body of the carbureter contains the heating jacket 12 with inlet andoutlet 71. The inlet 70 is controlled by a suitable valve 72 providedwith an operating arm 73 movable through the medium of, say, a Bowdenwire from the steering wheel of an automobile. The inlet 70 of thejacket may be connected with the exhaust manifold of the engine by anysuitable means, as by a flexible tube, and the amount (gf hot gasesadmitted through the jacket will be controlled through the valve 72.When start ing the carbureter the valve 72 may be wholly or partiallyopen, so that the fuel passing through the port 44, which port is inclose proximity to the jacket 12 as shown in Fig. 5, will be initiallyheated by the jacket prior to its admission to the fuel nozzle. And thefuel is thus rendered more easily vaporizable. After the engine isstarted and is well warmed up, the valve 72 may be regulated desired andmay be completely closed.

Having described a preferred form of my invention, I claim:

1. A carbureter, embodying a fuel nozzle having a plurality of linearlyspaced small openings, a rotary air valve surrounding the nozzle andadapted to control passage of air past the openings, and a rotary fuelcontrol valve within the air valve and immediately surrounding thenozzle, said fuel control valve being connected with the air valve tomove therewith.

2. A carbureter, embodying a fuel nozzle having a plurality of linearlyspaced small openings, a rotary air valve surrounding the nozzle andadapted to control passage of air past the openings, and a rotary fuelcontrol valve within the air valve and immediately surrounding thenozzle, said fuel control valve being connected with the air valve tomove therewith, and having a diagonal nozzle cut off edge adapted toprogressively cover or uncover the linearly spaced openings as the *alveis rotated.

3. A carbureter, embodying a fuel nozzle comprising a cylindrical tubehaving a plurality oflongitudinally spaced fucl openings through itswall, a rotary fuel control valve in'nncdiately surrounding thecylindrical tube, and means cooperative with the fuel control valve tocontrol passage of air past the fuel nozzle, said means embodying acylindrical rotary valve concentric with the fuel nozzle.

4. A earbureter, embodying a fuel nozzle comprising a cylindrical tubehaving a. plurality of longitudinally spaced fuel openings through itswall, a rotary fuel control valve immediately surrounding thecylindrical tube, and means cooperative with the fuel control valve tocontrol passage of air past the fuel nozzle, embodying a rotary valvedirectly connected to and concentric with the rotary fuel control valve.

A carbureter, embodying a suitable body having therein a. cylindricalvalve chamber with opposite ports, a rotatable cylindrical air valvetherein with ports adapted to register with the chamber ports, a fuelnozzle embodying a cylindrical tube axially located in the valve chamberand having a. plurality of axially spaced fuel openings through itswall, and a rotatable fuel control valve 'mmediately surrounding thecylindrical t be and connected with the air valve to move therewith.

6. A carburetor, embodying a suitable body having therein a cylindricalvalve chamber with opposite ports, a cylindrical air valve therein withports adapted to register with the chamber ports, one of said chamberports and a valve port having relatively diagonal edges, :1. fuel nozzleembodying a cylindrical tube axially located in the valve chamber andhaving a plurality of axially spaced fuel openings through its wall, anda fuel control valve immediatelyister with the chamber ports, a fuelnozzle embodying a cylindrical tube axially located in the valve chamberand having a plurality of axially spaced fuel openings through its wall,and a fuel control valve immediately surrounding the cylindrical tubeand connected with the air valve to move therewith, the body also havinga by-passage leading around one end of the valve chamber and the nozzletube having a fuel opening in said by-passage, and means to adjustablyrestrict the lay-passage.

S. A carbureter, embodying a suitable body having therein a cylindricalvalve chamberwvith opposite ports, a cylindrical air valve therein withports adapted to register with the chamber ports, a fuel nozzleembodying acylindrical tube axially located in the valve chamber andhaving a plurality of axially spaced fuel openings through its wall,and' a fuel control valve immediately surrounding the cylindrical tubeand connected with the air valve to move therewith,

the body having a b y-passage leading around one end of the valvechamber and a nozzle tube having a fuel opening in said bypassage, andmeans to adjustably restrict the by-passage both above and below thenozzle tube.

9. A carbureter, embodying a suitable body having therein a cylindricalvalve chamber with opposite ports, a cylindrical air valve therein withports adapted to register with the chamber ports, a fuel nozzleembodying a cylindrical tube axially located in the valve chamber andhaving a plurality of axially spaced fuel openings through its wall, anda fuel control valve immediately surrounding the cylindrical tube andconnected with the air valve to move therewith,

the body having a heating jacket surrounding the valve chamber, andhaving a fuel admission port to the nozzle tube in proximity to theheating jacket so that the fuel is initially heated on its passage tothe nozzle.

10. A carbureter, embodying a suitable body having therein a cylindricalvalve chamber with ports in its opposite cylindrical walls, a rotatablecylindrical air valve therein with ports adapted to register with thechamber ports, a,fuel nozzle concentrically and axially disposed in saidvalve and valve chamber and having fuel openings in its cylindricalface, and a rotatable fuel control valve cooperating with the fuelnozzle and concentric with the valve and valve chamber.

11. A carbureter embodying asuitable body having therein a cylindricalvalve chamber with ports in its opposite cylindrical walls, a rotatablecylindrical air valve therein with ports adapted to register with thechamber ports, a cylindrical fuel nozzle disposed in an axial directionwithin the air valve and valve chamber and having fuel openings in itscylindrical wall on one side directed toward one of the ports in thevalve chamber, and a cylindrical rotatable fuel valve cooperating withthe fuel nozzle and connected with the air valve to rotate therewith.

In witness that I claim the foregoing I have hereunto subscribed my namethis 8th day of October, 1915.

O REN TEED.

lVitnesses JAMEs T. BARKELEW, ELwoon H. BARKELEW.

